Abstract
This paper presents a nonlinear observer for estimating parameters associated with
the restoring term of a roll motion model of a marine vessel in longitudinal waves. Changes in
restoring, also referred to as transverse stability, can be the result of changes in the vessel’s centre
of gravity due to, for example, water on deck and also in changes in the buoyancy triggered
by variations in the water-plane area produced by longitudinal waves – propagating along the
fore-aft direction along the hull. These variations in the restoring can change dramatically
the dynamics of the roll motion leading to dangerous resonance. Therefore, it is of interest to
estimate and detect such changes.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 18. IFAC World Congress |
| Publication date | 2011 |
| Pages | 2967-2971 |
| ISBN (Print) | 978-3-902661-93-7 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | 18th World Congress of the International Federation of Automatic Control - Milano, Italy Duration: 28 Aug 2011 → 2 Sept 2011 Conference number: 18 http://www.ifac2011.org/ |
Conference
| Conference | 18th World Congress of the International Federation of Automatic Control |
|---|---|
| Number | 18 |
| Country/Territory | Italy |
| City | Milano |
| Period | 28/08/2011 → 02/09/2011 |
| Internet address |
Keywords
- Nonlinear observer
- Parameter estimation
- Marine systems
- Parametric resonance
